#include <stdio.h>
#include<assert.h>
int mnsc(const char* a, const char* b)
{
    assert(a && b);
    while (*a == *b)
    {
        if (*a == '\0')
            return 0;
        a++;
        b++;
    }
    return (*a - *b);
}
int main()
{
    char arr1[] = "abc";
    char arr2[] = "abc";
    int ret = mnsc(arr1, arr2);
    if (ret < 0)
        printf("<");
    if (ret > 0)
        printf(">");
    if (ret == 0)
        printf("=");
    return 0;
}